Generation of Terahertz Radiation in Boron-Doped Diamond.

Autor: Kononenko, V. V., Zavedeev, E. V., Dezhkina, M. A., Bulgakova, V. V., Komlenok, M. S., Kononenko, T. V., Bukin, V. V., Konov, V. I., Garnov, S. V., Khomich, A. A.
Zdroj: Bulletin of the Lebedev Physics Institute; Oct2023 Suppl 5, Vol. 50, pS606-S612, 7p
Abstrakt: For the first time, the ability of semiconducting diamond to convert near-IR laser radiation into terahertz radiation has been demonstrated. A set of photoconductive antennas based on single-crystal diamonds doped with boron (~1 ppm) was assembled and tested under conditions of pumping with ultrashort (τopt ≈ 150 fs) radiation pulses with a wavelength of 800 nm and a pulsed voltage (τE ≈ 10 ns, Ebias ≈ 10 kV/cm). The characteristics of the boron-doped emitters were compared with recently implemented nitrogen-doped diamond antennas pumped by 400-nm-wavelength radiation pulses, since substituting nitrogen requires a much higher quantum energy for single-photon excitation of carriers. The results obtained are another step towards the use of diamond as a material for high-performance photoconductive antennas. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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